Across the bleak and barren moorland stalks a beast. It is an unknown thing; a creature from the darkest, most terrifying of nightmares.

After Ralph accidentally runs over a deer, he decides to take the animal home and ends up serving prime venison to her wife that evening. Soon, his thirst for blood becomes something different, and his life slowly spirals out of control.
As the body count rises, a local schoolteacher and a young woman become involved in the mystery. But is Ralph really the Beast of Bodmin?